3. Surface wave filters (SAW)
3.1 A brief history of surface wave devices
The history of surface wave devices began in 1965 with the invention of the interdigital quartz comb by White and Voltmer
The first applications of SAW devices were reserved for the military and professional sectors. The products were delay lines, dispersive delay lines for radar applications, convoluters... The first consumer applications were band filters for TV sets and radio sets receiving FM broadcasts (FM – 1976 Murata). These are still...
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Surface wave filters (SAW)
Thin-film volume-wave resonators and filters (FBARs)
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